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PHE400
Compact Mini Hum Eliminator Box
USER GUIDE
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IMPORTANT SAFETY INSTRUCTIONS
1. Read Instructions: All safety and operating instructions
should be read before operating the appliance.
2. Retain Instructions: Keep the safety and operating
instructions for future reference.
3. Heed Warnings: Adhere to all warnings on the appliance
and in the operating instructions.
4. Follow Instructions: Follow all operating and usage
instructions.
5. Water and Moisture: Do not use the appliance near
water, such as near a bathtub, washbowl, kitchen sink,
laundry tub, swimming pool, or wet basement.
6. Ventilation: Ensure proper ventilation by placing the
appliance away from surfaces that may block ventilation
openings, such as beds, sofas, or rugs.
7. Heat: Situate the appliance away from heat sources,
including radiators, heat registers, stoves, or other heat-
producing appliances.
8. Power Sources: Connect the appliance to a power
supply only as described in the operating instructions
or marked on the appliance.
9. Grounding or Polarization: Ensure that the grounding
or polarization means of the appliance is not
compromised.
10. Power-Cord Protection: Route power supply cords to
avoid being walked on or pinched, especially at plugs,
convenience receptacles, and where they exit the
appliance.
11. Cleaning: Clean the appliance only as recommended
by the manufacturer.
12. Power Lines: Avoid locating an outside antenna
system near overhead power lines or electric circuits
to prevent contact that could be fatal.
13. Non-use Periods: Unplug the appliance's power cord
from the outlet when it will be left unused for an
extended period.
14. Object and Liquid Entry: Prevent objects from falling
and liquids from spilling into the appliance enclosure
through openings.
15. Carts and Stands: If using a cart or stand,
ensure it is recommended by the
manufacturer and move the combination
with care to prevent overturning.
16. Mounting: Mount the appliance only as recommended
by the manufacturer.
17. Damage Requiring Service: Seek qualied service
personnel when the power-supply cord or plug is
damaged, objects or liquids have entered the enclosure,
the appliance has been exposed to rain, dropped, or
damaged, or if it does not operate normally.
18. Servicing: Do not attempt to service the appliance
beyond user-operating instructions. Refer all other
servicing to qualied personnel.
19. Overloading: Avoid overloading wall outlets and
extension cords to prevent re or electric shock.
20. Replacement Parts: Use replacement parts specied
by the manufacturer or with the same characteristics
as the original part to prevent hazards.
21. Safety Check: After servicing or repairs, request a
safety check from the service technician to ensure
proper operating condition.
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FEATURES AND CONTROLS
XLR Input
Jacks
XLR Output
Jacks
The Hum Eliminator eectively addresses the common issue of 60Hz AC hum caused by ground loops, which act as
radio antennas (loop antennas). By breaking the ground loop, this device eliminates the possibility of signal lines
picking up AC hum and noise. Unbalanced lines are inherently more susceptible to picking up electrical noise and
RF interference compared to balanced lines. Additionally, the longer the unbalanced cable, the higher the likelihood
of encountering such problems. Utilizing this device to connect two pieces of equipment presents one of the most
cost-eective solutions for converting between unbalanced signals and true balanced signals.
Furthermore, the Hum Eliminator automatically translates signal voltages to match dierences in ground potentials.
Features and Technical Specs:
• 60 Hz Noise RemovaL
• Removes AC Hum Noise
• Breaks Ground Loops Safely
• Maintains Highest Sonic Quality
• Passive Device: No Power Required
• High-Performance Ultra-Compact Design
• 1/4-Inch TRS Phone and XLR Inputs and Outputs on 2-Channels
• Audiophile High-Quality Components and Exceptionally Rugged Construction
• Automatically Converts Unbalanced to Balanced Signal Without Any Signal Loss
• Uses 11:1 Isolation Transformers to Break Loop Antenna and Balance Audio Lines
• Automatically Translates Signal Voltages to Match Dierence in Ground Potentials
• Dimensions (W x D x H): 7" x 6" x 2.5"
Questions or Comments?
We are here to help!
Phone: 1.718.535.1800
PyleUSA.com/ContactUs
www.PyleUSA.com
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